Worksheet 21-Semiconductors Flashcards
What are the conducting properties of pure semiconducting material?
Pure semiconductor material actually has very poor conducting properties.
What process is used to increase the conductivity of semiconductor material?
Doping is the process of intentionally mixing impurities into the semiconductor material so that its conductivity can be modulated to the desired level.
How is N-Type material created during manufacturing?
N-type semiconductor material is created when silicon is grown and is doped with phosphorus, arsenic or antimony that crease an excess of electrons in the semiconductor.
What electrical properties does P-type material have?
N-type semiconductor material is created when silicon is grown and is doped with phosphorus, arsenic or antimony that crease an excess of electrons in the semiconductor material.
Draw a standard P-N diode and identify the anode and cathode.
What is meant by the term forward bias in a diode?
Forward bias in a diode is when the diode is able to conduct electricity.
When negative voltage is applied to the anode side of a diode, what happens electrically?
If negative voltage potential is applied to the anode of a junction diode, holes in the P-type anode will be pulled toward the negative bias and free electrons in the N-type cathode will be pull toward the positive bias, thus expanding the depletion region and preventing current from flowing.
